The Hydra Tears Its Face Off To Open Its Mouth

A Hydra is a small freshwater, tentacled animal, whose mouth actually disappears every time it closes. According to a a scientist quoted in Ed Yongs blog on National Geographic,  “when a hydra closes its mouth, it obliterates it.” This means to open it again, it has to tear itself apart.

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Image: Theoi

We all know about the Hydra from Greek mythology, big venomous monster with the annoying ability to regrow its heads. Well this little guy has a lot of similarities according to Ed Yongblog. Although not big and scary, their ability to regenerate even has some scientists suggesting they are effectively immortal. Have a watch…

Why did they develop this way? No one seems to know…